Tubing D-L Assembly Back Catalog number: 11-4152 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended 11-2401 Check Valve Cartridge, Ceramic Ball & Seat, 2/pk Price on request CTS-21095 Seal Wash (0.0787 ID, Fixed, Bio), 2/pk Price on request CTS-21010 Cartridge Check Valve Housing, 2/pk Price on request